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기하학적 비선형을 고려한 래티스돔 구조물의 동적 좌굴 해석
한상을(Han Sang-Eul),김만중(Kim Man-Joong),강노원(Kang Noh-Won) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.3
In this paper, the dynamic buckling criteria based on the stability of Lyapunov sense is introduced in order to analyze the dynamic buckling of latticed dome structures. As analytic models, we consider shell-like shallow truss models such as star-shape dome, span 50m latticed dome. We perform a nonlinear time history analysis and apply the dynamic buckling criteria which is introduced in this paper. Dynamic buckling loads are numerically estimated under up and down conservative forces, which are step, harmonic and seismic excitations, and compared with the static critical loads.